move slice provider with callback to separate module

Change-Id: If730cbecd6decf81c55c50606f56ae838e0fcf21
Test: SliceProviderCallbackTest
diff --git a/settings.gradle b/settings.gradle
index 1c8572b..f7efe43 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -231,6 +231,7 @@
 includeProject(":slice-test", "slices/test")
 includeProject(":slice-builders-ktx", "slices/builders/ktx")
 includeProject(":slice-benchmark", "slices/benchmark")
+includeProject(":slice-remotecallback", "slices/remotecallback")
 includeProject(":slidingpanelayout", "slidingpanelayout")
 includeProject(":sqlite:sqlite", "sqlite/sqlite")
 includeProject(":sqlite:sqlite-ktx", "sqlite/sqlite-ktx")